Save the Hardware Rotation Lock

Toggling the rotation lock using the hardware switch could be done with a single interaction by a hand in a holding grip. The double-click home button, slide-right, then tap on-screen button method requires one hand to stop holding, and then use three types of interactions within the surface area. The changes of type, and increase in number of interactions distances the user from this key feature.

After the 4.2 update, the hardware switch is a partial mute toggle. If you want to truly mute all sounds, particularly those from video or audio media, you must hold the decrease volume button; the interaction method already in use to mute the audio before the update.

See also:

http://discussions.apple.com/thread.jspa?threadID=2661458&tstart;=135